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8290313 = 53156421
BaseRepresentation
bin11111101000000000001001
3120121012011122
4133220000021
54110242223
6453405025
7130316003
oct37500011
916535148
108290313
1147526a9
122939775
131943615
14115b373
15adb5c8
hex7e8009

8290313 has 4 divisors (see below), whose sum is σ = 8446788. Its totient is φ = 8133840.

The previous prime is 8290309. The next prime is 8290319. The reversal of 8290313 is 3130928.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2199289 + 6091024 = 1483^2 + 2468^2 .

It is a cyclic number.

It is not a de Polignac number, because 8290313 - 22 = 8290309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8290319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78158 + ... + 78263.

It is an arithmetic number, because the mean of its divisors is an integer number (2111697).

Almost surely, 28290313 is an apocalyptic number.

It is an amenable number.

8290313 is a deficient number, since it is larger than the sum of its proper divisors (156475).

8290313 is a wasteful number, since it uses less digits than its factorization.

8290313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156474.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 8290313 is about 2879.2903639612. The cubic root of 8290313 is about 202.3905866281.

The spelling of 8290313 in words is "eight million, two hundred ninety thousand, three hundred thirteen".

Divisors: 1 53 156421 8290313